Travelling in Guyana you will meet Types A and B sockets, fed with 110 V or 220 V at 50 Hz or 60 Hz. Different voltages are recorded (110 V or 220 V). The rating plate on your device decides. Both 50 Hz or 60 Hz are recorded, which can matter for motors and timers but not for chargers.
The same socket system is used in Colombia, Venezuela, Suriname and Ecuador, so one adapter covers all of them. Watch out when moving on: the Falkland Islands, Uruguay and Brazil use a completely different system. 5 of the 14 destinations in South America share the plug types of Guyana.
Protective earth
Grounded and ungrounded sockets may occur
Mixed supply: Type A without earth, Type B with earth. Which one is in your room only shows on arrival.
At 110 V or 220 V a 230 V-only hair dryer will not work properly; dual-voltage chargers will. The 50 Hz or 60 Hz supply matters for motors and mains clocks, not for chargers. Check your own device →
Types A and B – that is what you will find in Guyana (110 V or 220 V, 50 Hz or 60 Hz).
Will my hair dryer work in Guyana?
At 110 V or 220 V it depends on the rating plate: “100–240 V” is fine, single-voltage gear is not.
An adapter changes the plug shape only, not voltage or frequency. Guyana supplies 110 V / 220 V at 50 Hz / 60 Hz – check the rating plate on your device. How to read a rating plate →
If a socket gets hot, crackles or smells burnt, unplug the device straight away.